Supercapacitors (SCs) generally operate at low voltages of about 2.7 V. To achieve higher operating voltages, it is necessary to build up a cascade of SC cells connected in series. Due to variations ...
Fig. 1. Series-connected supercapacitors; also called ultracapacitors, or electrochemical double layer capacitors (EDLC). Individual supercapacitors are available from 1Farad to 100s of Farads.